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1 2020

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Structural and magnetic properties of gadolinium modified BiFeO3

Ramirez Guzmán L. M., Cruz Pacheco A. F., Gómez Cuaspud J. A., Parra Vargas C. A.

Materials Science Poland

2020

Vol. 38, No. 4

559--565

This paper reports the synthesis and characterization of the Bi0.94Gd0.06FeO3 sample obtained by solid state reaction method. The structural and morphological analysis was performed by X-ray diffraction (XRD), scanning electron microscopy (SEM) and Rietveld refinement analysis, confirming the obtaining of a rhombohedral crystalline phase and R3c space group (a = b = 5.577 Å and c = 13.847 Å), with an interconnected structure. Studies by X-ray photoelectron spectroscopy (XPS) revealed trivalent oxidation states of Bi, Fe and Gd ions. The synthesized sample exhibited a non-linear M–H loop indicating a weak ferromagnetic behavior with a remnant magnetization of 6.34 emu∙mol−1 and a coercive field of 295 Oe. The obtained structural and magnetic characteristics make these materials of great interest as multiferroic components.